Many kings and emperors used silver chopsticks to see if their food was poisoned.
许多帝王用银制的筷子以检查他们的食物中是否被人投了毒。
I don't think there are. But there are more men than women scientists. And more men than women are heads of companies.
我想没有。但是,男科学家比女科学家多。而且,各公司的负责人中,男人要比女人多。